need wordpress guru to buld new wordpress plugin

We need WP plugin for marketplace aimed at exchanges by the wordpress in conjunction with woocomerce. Plugin will be for this theme: [login to view URL] and if in details for this: [login to view URL] Feature where users can swap (trade) items instead of purchasing them. Users registered their products that they wish to exchange, when they found a product that they are interested in, they made an offer and in this offer they selected a product already registered on the site, the user receiving the offer can accept it or not if he accept entered the exchange screen where they will have a chat for them to communicate to make the exchange in person and finally finalize the negotiation and realize the reputation of the user. How barter or eswap/exchange working This can be seen on [login to view URL] and will need features like you will see on this [login to view URL] Please provide exact price/budget with timeline